Description:Rare "Spahnie Day" button advertising display sign c.1963. Original 14"x22" cardboard display sign advertising the sale of "Spahnie Day" buttons to celebrate the career of Warren Spahn at Milwaukee County Stadium on September 17, 1963. Colorful thick stock cardboard sign pictured and rendering of the Spahn button at the center with proceed of the button sale designated to the Warren Spahn Scholarship Foundation. Very fine general condition with some light adhesive residue on the reverse: EX-MT. Includes an original 1963 Spahnie Day button as advertised on the offered poster: EX-MT